Nut-lock.



' I E. R. POST.

' NUT LOCK.

APPLICATION FILED SEPT. 19, 1916. I

1,235,594. Pfite nted Aug. 7, 1917;

Edwardfi.P0sZ

. .-'in the accompanying drawing, and specifi I citizen of the United States, residing at To- EDwARDfnrosr, or ronnno, OHIO, ASSIGNOR or YONE-EHOURTHIOHC." MO0Rn,--on

NUT-LooKQ To all whom mayconcemf p Be itknown that I, EDWARD R. Pos'r, a

ledo, in, the county of Lucas and State of.-

Ohio, have invented certain new and useful Improvements in Nut-Locks, ofwhich the following "is a specification.

This invention relates to nut locks and especially to the type of nut lock described and illustrated in my prior Patent No.

, 642,488 issued Jan. 301900.

Experience has shown that my formernut lock possessed a certain feature in the locking device which rendered. the nut lock more expensive 'to manufacture than desirable. The principal object is, therefore, to so improve and simplify the nut lock as to render it far more eeonomical'to manufacture without sacrificing any of the advantages'derived from the former construction.- I .With the above and other objects in view, as will be hereinafter apparent the invention consists in general of certain novel de-' tails of'construction and combinations of through a rail and in its fish parts locked;

- Fig. 5 is .a perspective view of the washer and one of the nuts detached.

parts hereinafter fully described, illustrated cally claimed. I

r In the accompanying drawing, like characters of reference indicate like parts in the several views, and z- Figure l is avertical transverse section plates showing the improvedlock in use.

Fig. 2 is an enlarged view of the bolt with. its nuts and the locking device. or washer ready for locking, the nuts and washer being in section. I Fig. 3 is a detail showing the nuts and washer in side elevation ready for locking,v Fig. ,4 is a viewsimilar to Fig. 3 with-the In the improved form of nut look I employ a bolt 10 provided with right hand threads 11 and a reduced end 12 having left handthreads, it being obvious that the direction or hand of these threads maybe;

- transposed. .By reasonof'the reduced end 12 there is a shoulder' 13 formed on the bolt suitable tool is at the bolt.

screwed a nut 15, a bendable washer 16, of

These nuts are" of like contour and have gtheir confronting faces provided with penpheral recesses 17 into which portions of the edge of the'washer 16 may be bent.

' Inapplying the device, as for instance to a railR and fish plates F, the bolt is passed through suitable openings in said rail and fish plates so that .its threaded end protrudes. ,The nut 14 is then screwed into place and the washer 16 applied. Next the nut 15 is screwed on untilthe washer is clampedbetween the two nuts, the recesses 17 in the nuts being preferably brought into Opposition n a blunt Punch or other I i fi e against the inner s face of the 'W& er opposite one of the notches in the outer nut and struck with a the nut 14 in a'similztr manner."

There has thus been provided a and efficient device of the kind for the purpose specified.

" Patented Aug. 7, 1917.. I i

Application filed September 19, 1916. .Seria1No.120,9.75.

I I i I v junction of-the end and body offsuch On the" threaded portion .11 ji j fw d a nut, nd on the reduced end1 12 is hammer so that a portion of the washer 16." 1 is driven into'one of the recesses 17 of the outer nut 15 and then other portions ofthe I washer are driven into-adjacent recesses ins implei described and It is obvious that many minor changes" may be made in the form and construction of the invention without departing from the material principles thereof. It is not therefore'desired toconfine the invention to the exact form herein shown and described but it is wished to include all such as properly come within the scope claimed.

Having thusdescribed the invention, what [is claimed asnew, is

In combination, a. bolt provided with a reduced end .portion and having right and left hand threads, a shoulder formed at the base of the reduced end portion, an outer andinner nut engaging the threads of the bo t, and havin their adjacent aces to form openings, a 100 corresponding recesses in In testimony whereof I aflix my signature 1n presence of two W1tnesses.

EDWVARD R. POST. Witnesses:

ED'E. PURNIA, IVAN M. MOORE. 

